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Cylindrical battery thermal management system

A cylindrical battery and thermal management system technology, applied in the direction of secondary batteries, battery pack components, circuits, etc., can solve the problems of large temperature difference of cylindrical batteries, without considering the cooling of the bottom of the battery, etc., to reduce heat accumulation, prolong separation Independent convection, the effect of extending the convection path

Active Publication Date: 2021-10-26
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 1) The liquid working medium in the serpentine flat tube flows in a single direction from the distribution header to the collection header. This cooling arrangement will make the cylindrical battery close to the liquid flowing into and out of the serpentine flat tube have a larger temperature difference
[0010] 2) The invention does not consider the cooling of the bottom of the battery

Method used

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  • Cylindrical battery thermal management system
  • Cylindrical battery thermal management system
  • Cylindrical battery thermal management system

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Embodiment Construction

[0031] figure 1 It is a schematic diagram of the overall structure of the present invention, figure 2 is the schematic diagram of the structure of the convection component, image 3 yes figure 1 top view of Figure 4 is a schematic diagram of the structure of the liquid distribution header, Figure 5 yes Figure 4 sectional view of Image 6 is a schematic diagram of the structure of the serpentine tube, Figure 7It is a cross-sectional schematic diagram of the convection channel. As shown in the figure, the cylindrical battery thermal management system in this embodiment includes a liquid collection header 7 arranged at the bottom of the cylindrical battery 1, and is fixedly connected to the liquid collection header 7. The left end liquid distribution header 4 and the right end liquid distribution header 3 on the side are connected to the serpentine plate 2 installed between the left end liquid distribution header 4 and the right end liquid distribution header 3; the se...

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Abstract

The invention discloses a cylindrical battery thermal management system, comprising a liquid collection header arranged at the bottom of the cylindrical battery, a left end liquid distribution header and a right end liquid distribution header fixedly connected to each other on the opposite side of the liquid collection header, A plurality of serpentine plates connected to and installed between the left liquid distribution header and the right liquid distribution header; the serpentine plates run through between the cells of the array. The thermal management system of a cylindrical battery disclosed by the present invention can quickly balance the temperature difference inside and between the single batteries, reduce heat accumulation, prolong the service life of the battery, and provide a good working temperature environment for the single battery. An efficient and reliable battery thermal management control system can make the power battery work in the optimal temperature range. Through the left and right liquid distribution headers and serpentine plates, the multi-channel staggered convection of coolant is realized, which greatly prolongs the convection path and independent convection.

Description

technical field [0001] The invention relates to the field of electric vehicle batteries, in particular to a cylindrical battery thermal management system. Background technique [0002] With the diversification of the automobile industry and the increasingly severe environmental problems, the new energy automobile industry is developing rapidly. New energy vehicles are the trend of automobile development today, and electric vehicles account for a large proportion of new energy vehicles. The country also attaches great importance to the field of electric vehicles. Among them, electric vehicles have a smaller impact on the environment than traditional vehicles, and are used more and more widely. Electric vehicles refer to vehicles powered by vehicle-mounted power supplies, driven by motors, and meeting the requirements of road traffic and safety regulations. Batteries serve as The heart of electric vehicles is the key to the development of the electric vehicle industry. In add...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/213H01M50/244H01M50/249H01M50/289H01M10/613H01M10/625H01M10/6557H01M10/6568
CPCY02E60/10
Inventor 张甫仁谢忱创汪鹏伟
Owner CHONGQING JIAOTONG UNIVERSITY
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